Apparatus for applying heat and air in dental work



July 3o, 1929.

. J. H. KAPLAN APPARATUS FOR 'APPLYING HEAT AND AIR IN DENTAL WORK Filed May 5, 1926 2 Sheets-Sheet 2 J mm.

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Patented July 30, 1929.

UNITED stares rarest 'aries e .A-PIPARATUS FOR APPLYING HEAT AND AIR IN DENTAL WORK.

Application led May 3,

This invention relates to an improved apparatus, particularly adapted, though not necessarily limited initsuse for applying a blast of heat or of fluid, the apparatus embodying a chamber inwhich atmospheric air is compressed by mechanical means, and improved means whereby it is possible to secure a sustained or an intermittent blast of fluid at the election of the operator,.to produce a steady or an'intermittenty llame, suitable for use in dental work of any nature wheresuch a blast is necessary or desirable and which apparatus will'be of a compact construction and arrangement, easy to be handled and effective and eiiieientlinfoperation.

A further object: is to provide an improved apparatus of this character embodying a fuel chamber andan air chamber, one of which is housed within the other, and a nozzle h aving communication with the air chamber. ferdirecting the blast of air against the flame, and improved means whereby the nozzle may be adjusted with respect to the fuel delivery as may bev desired, and maintained in its adj usted position.

To the attainment of these ends andthe accomplishment ofi other new and useful objects as will appear, the invention consists in the features of novelty, in substantially the construction, combination and arrangement of the several parts, hereinafter more fully described and claimed andshown in theA accompanying drawings illustrating this invention; and in which Figure 1 is a vertical longitudinalsectional view of an apparatus of this character constructed in accordance with the principles of this invention.

Figure 2 isvan enlarged detail view partly in eleva-tion and partly in section of one form of nozzle.

Figure 3, is an enlarged' detail sectional view of the controlling valve shown in Figure 1, with the parts in another position.

Figure 4 is a side elevation of Figure 1;

Figure 5 is a top plan view of the apparatus. f

Figure 6 is an enlarged detail sectional view of another form of controlling valve.

@5 chamber of desired and' configura Figure 7 is an enlarged detail sectional 1926. Serial No. 106,237.V

chamber 10, preferably in alinement with the airl inlet opening 11.

The tube 16 projects above the closure 13 and is provided with a` tubular extension 17 secured in position in any suitable manner, preferably by being threaded on to the end of the tube 16 as at 18.

The extension 17 is provided with a slot 19 opening through the top thereof.

A nozzle 20'bis provided with a body portion. 21 having a reduced extremity 22. gasket or packing element 23 is sleeved over the reduced portion 22, and a nut 24 is threaded upon the extremity of the reduced portion 22, and between which nut and a shoulder 25 of the body portion 21 the gasket is arranged.

A reducing nipple 26 is inserted into the extremity of the reduced portion 22 of the body 21 and the aperture in the nipple 26 is considerably less than. the aperture through the nozzle 20, for a purpose to be hereinafter set forth.

The end of the bodyl portion of the nozzle is inserted into the tubular extension 17 and is of a. diameter to slidably fit therein and also in the tube 16, the nozzle being adapted to be raised and lowered in any suitable manner, z

such as by means of a handle 27 adjustably mounted upon a threaded projection 28' eX- tending laterally from the body portion. The projection 28 is adapted to enter the slot V19 in the tubular extension 17 and by adjusting the handle 27 upon the extension28 and against the extension 17, the nozzle may be securedl in position.

The gasket 23 serves as a means for forming a .fluid tight oint between the wall of the tube 16 and the exterior of the body portion 21 of the nozzle to 'prevent the escape of air. By adjusting the nut 24 so-as to force the gasket the shoulder 25, the' periphery er the gasket will be projected beyond the periphery of the body portion so that it will frictionally bind upon the wall of the tube 16.

rlhis gasket will also assist in maintaining the nozzle in its adj usted position to bind the nozzle against further movement.

The extremity of the nozzle is adapted to be positioned with respect to the flame sustained at the end of the wick l5, in accordance with the nature of the Haine desired, and the work to be performed.

The structure thus formed is supported upon a suitable base 29, and interposed between the base 29 and the bottom of the chamber l0, is a bulb like device 30 preferably constructed of rubber, which is not only adapted to supply air to the chamber l and to compress the air therein but als-o serves as a handle by means of which the device may be transported as well as held in position for use. By reason of the fact that the bulb serves this double purpose it will be manifest that only one hand of the operator is necessary for both purposes so that the other hand will be free.

Air is supplied to the bulb through an opening 31 passing through the base 29, a valve 32 being provided for preventing the air from passing backwardly through the passage 31. A tube 33 connected with the passage 31, also has communication with the air inlet passage 11 of the chamber l0, and a valve 34 is provided for controlling the entrance of the air into the chamber and out therefrom.

The valves 32, 34 are so arranged that when the bulb is compressed7 air will be delivered into the chamber 10, the compression of the bulb 30 serving to unseat the valve l34 and to seat the valve V32.

wWhen the bulb 30 is released to permit'the same to expand, suction will be created in the bulb which will seat the valve 34 and unseat the valve 32 to admit a new supply of air.

By alternately compressing and releasing the bulb 30, it will be manifest that ail-r will be pumped into the Chamber 10 and will be compressed therein, as the exit passage for the air from the chamber through the nozzle 20 is of a considerably less area than the air inlet 11.

By providing the reducing nipple 26, the exit of the air from the chamber l() will be retarded, and by reason of the fact that there will then be some compressed air stored in the chamber 10, the blast of air emitted from the nozzle 20 will be sustained or continuous.

Means may be provided for controlling the valve 34 to prevent it from closing the passage 33 `when the bulb 30 expands. To that end there may be provided a plunger 35 which is arranged in alinement with the valve 34 and is adapted to engage the valve and unseat the same by forcing it into a recess 36 in the connection 37 between the bulb 30 and the air chamber lO. A stop device 38 is provided to limit the unseating movement of the valve 34 under the influence of the air pressure.

The plunger 35 may be operated in any suitable manner preferably by means of a cap or handle 39 which is preferably connected to the stem 40 of the valve, and the stem is provided with threads 4l engaging threads in the wall of the plunger casing 42.

By rotating the cap 39 the plunger 35 will be screwed forwardly and backwardly in the casing 42, and when moved forwardly the plunger will engage and unseat the valve 34, but when moved backwardly the valve 34 will assume a position upon its seat.

A packing element or gasket 43 and nut 44 similar to the gasket 23 and nut 24 may be provided for producing a fluid tight joint.

In the form of the invention shown in Figure 6 the valve 34 is controlled by means of a plunger 45, controlled by a spring' 46, the plunger extending into the valve chamber 47 and being provided with operating handle 48.

In this form of the invention when it is desired to produce an intermittent discharge of air through the nozzle, the apparatus is inverted, and the plunger retracted by drawing back upon the handle 48, until the valve 34 engages and rests upon the stop 38. The plunger is then released and the spring will cause the extremity of the plunger to pass under the valve 34, so that the valve will be held ofi' of its seat when the apparatus is arighted. When it is desired to produce a steady or sustained discharge of air'from the nozzle 20 after the valve 34 has been once unseated, in the manner which is described, the plunger 45 may be retracted to allow the valve to fall to the position shown in solid lines in Figure 6.

In Figure 7 there is shown another form of means for raising and .lowering the nozzle and for maintaining it in its adjusted pou sition.

In this form of the invention a tubular extension 49 is connected with a nozzle 20, through the medium of a nut or collar 50 which is threaded on the end of the extension 49. A collar 5l is connected with the end of the nozzle 2O and is provided with a reduced and externally threaded portion 52, to form a shoulder 53.

A disc 54 of suitable heat insulating matej adjusted position there may be provided a packing 56 in an extension 57 on t-he cover 13, and through which extension the tubular member 49 passes.

An element 57 preferably of metal, is sleeved upon the extension l9-to engage the packing 56, and a bushing 58 is threaded upon the extension 57 and'co-operates therewith to compress the packing 56 and frictionally'bind the extension 49 in its adjusted position.

1With this invention, it will be manifest that there is provided an apparatus by means of which a sustained or anV intermittent flame may be produced, according to the nature of the work being operated upon, and the nozzle may be adjusted to any desired extent to position it so that it will assume the desired position with respect to t-he flame.

It will also be manifest that the apparatus is of a unitary and compact construction, so arranged that it mayv be easily manipulated, and may be readily converted so that it will produce either an intermittenty or a steady or sustainedv flame. Y

lVhile the preferred forms of the invention have been herein shown and described, it is to be understood that various changes may be made in the-details of` construction and in the combination and arrangement of the several parts, within the scope of the claims, without departing from the spirit ofv this invention.

What is claimed as new is:--

l. A prosthetic lamp embodying an air chamber, a fuel chamber, one-of whichehambers is disposed within and out of? communication with the other, anozzle and flamesustaining means adjacent each other and having'communieation with the res-pective chambers, a rigid support for the chambers, said support embodying a base and a defiatable and inflatable bulb disposed between the base and said chambers andl encompassing said support for supplying air to the air chamber, said support maintaining said chamber, bulb and base against bodily lateral deflection one with respect to the other, said'bulb serving as a handle whereby the entire apparatus may be lifted and held in-positionfor use, by the same hand of the operator which collapses the bulb.

Q. A prosthetic lamp embodying an air chamber, a fuel chamber, one of which chambers is disposed within and out of communication with the other, a nozzle and flame sustaining means adjacent each other and havingcommunication with the respective chambers, a base for supporting the chambers, and a deflatable and inflatable bulb disposed between the base and said chambers for supplying air to the air chamber, means for maintaining the said base, bulb and chamber against bodily deflection one with relation to the other, said bulb serving as a-handle whereby the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb, the said bulb constituting a part and parcel of the supporting structure between said base and chamber.

3. A prosthetic lamp embodying an` air chamber, a fuel chamber, one of which chambers is disposed within and out of communication with the other, a nozzle and flame sustaining means adjacent each other and having'communication with t-he respective chambers, a base for supporting the chambers, a deflatable and infiatable bulb disposed between the base and said chambers for supplying air to the air chamber, means for maintaining said bulb, base and chamber against bodily lateral deflection one with relation to the other, said bulb serving as a handle whereby the entire apparatus may be ele vated and held in position for use by the same hand of the operator which collapses the bulb, and means controllable at the willof the operator for selectively causing the blast from the nozzle to be continuous or intermittent.

4f. A prosthetic lamp including a nozzle, means for sustaining a flame adjacent the nozzle, an air chamber for supplying air to the nozzle, a supporting base, a standard connecting the chamber and said base, a deflatable and inflatable bulb disposed between the 'base and said chamber and encompassing the standard, said bulb serving as a handle whereby the entireapparatus may be lifted and held in position for use by the same hand ofthe operator which collapses the bulb, and means whereby` air will be forced into the said chamber when the said bulb is collapsed.

5. A prosthetic lamp including a nozzle, means for sustaining a flame adjacent the nozzle, anair chamber for supplying air to the nozzle, a supporting base, a standard connecting the chamber and said base, a deflatable and inflatable bulb disposed between the base and said chamber and encompassing the standard, said bulb serving as a handle whereby the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb, and means whereby air will lbe forced into the said chamber through the said standard when the said bulb is collapsed.

6. A prosthetic lamp including a nozzle, means for sustaining a flame adjacentthe nozzle, an air chamber for supplying air to the nozzle, a supporting base, a standard connecting the chamber and said base, a deflatable and inflatable bulb disposed between the base and said chamber and encompassing the standard, said bulb serving as a handle whereby the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb, means whereby air will be forced into the said chamber when the said bulb is collapsed, and means for selectively controlling the flow of air to cause the flow of air to the nozzle to be intermittent or sustained.

7. A prosthetic lamp including a nozzle, means for sustaining a flame adjacent the nozzle, an air chamber for supplying air to the nozzle, a supporting base, a standard connecting' the chamber and said base, a deflatable and inflatable bulb disposed between the base and said chamber and encompassing the standard, said bulb serving as a handle whereby the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb, means whereby air will be forced into the said chamber through the said standard when the said bulb is collapsed, and means for selectively cont-rolling the flow of air to cause the flow to the nozzle to be intermittent or sustained.

8. A prosthetic lamp including a nozzle, means for sustaining a fia-me adjacent the nozzle, a support for the structure embodying a standard and a base therefor, a collapsible and inflatable bulb encompssing the standard above said base, and means whereby the deflationV and inflation of the bulb will cause a supply of air to be delivered to the nozzle and against the fiame, the said bulb serving` as a handle by which the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb and while the bulb is being collapsed and inflated.

9. A prosthetic lamp including a nozzle, means for sustaining a flame adjacent the nozzle, a support for the structure embodying a standard and a base therefor, a collapsible and inflatable bulb encompassing the standard above said base, and means whereby the deflation and inflation of the bulb will cause a supply of air to be delivered to the nozzle through the said standard and against the flame, the said bulb serving as a handle by which the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb and while the bulb is being collapsed and inflated.

l0. A prosthetic lamp including a nozzle,

means for sustaining a llame adjacent the nozzle, a support for the structure embodying a standard and a base therefor, acollapsible and inflatable bulb encompassing the standard above said base, means whereby the deflation and inflation of the bulb will cause a supply of air to be delivered to the nozzle and against the flame, the said bulb serving as a handle by which the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb and while the bulb is being collapsed and inliated, and means for selectively controlling the supply of air to the nozzle to cause the flow to be intermittent or sustained.

1l. A prosthetic lamp including a nozzle, means for sustaining a flame adjacent the nozzle, a support for the structure embodying a standard and a base therefor, a collapsible and inflatable bulb encompassing the standard above said base, means whereby the deflation and inflation of the bulb will cause a supply of air to be delivered to the nozzle through the said standard and against Athe flame, the said bulb Serving as a .handle by which the entire apparatus may be lifted and held in' position for usev by the same hand of the operator which collapses the bulb and while the bulb is being collapsed and inflated, and means for selectively controlling the supply of air to the nozzle to cause the flow to be intermittent or sustained.

12. A prosthetic lamp including a nozzle, means for sustaining a flame adjacent the nozzle, a supporting base, a standard rising from said base and supporting the nozzle, an air'chamber also supported by the stand-l ard for supplying air to the nozzle, a deflatable and inflatable bulb disposed between the nozzle and said base and encompassing the standard, said bulb serving as a handle whereby the entire apparatus may be lifted and held in position for use by the same hand of the operator which collapses the bulb, and means whereby air will be forced into the said chamber when the bulb is collapsed.

In testimony whereof I have signed my name to this specification, on this 28th day of April, A. D. 1926.

JACOB H. KAPLAN. 

